Nepean Bay Weather Forecast

    • 6
    • 18

    Partly cloudy

    • 5
    • 19

    Partly cloudy

    • 7
    • 21

    Mostly sunny

    • 12
    • 23

    Possible shower

    • 13
    • 23

    Partly cloudy

    • 9
    • 22

    Shower or two

    • 10
    • 21

    Possible shower

Today 27 Oct Kangaroo Island

Partly cloudy. Slight chance of a shower in the late morning and afternoon. Light winds becoming southwesterly 15 to 20 km/h in the middle of the day then tending southerly in the late afternoon. Daytime maximum temperatures around 17.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots becoming southwesterly 10 to 15 knots in the middle of the day then tending southerly in the late afternoon.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A ridge of high pressure moves into western SA and will persist over most the state, as the associated high drifts east across waters to the south, clearing east of Australia from Thursday. A trough and low pressure system are then forecast to track into western SA on Thursday before crossing the rest of the state on Friday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

October Temperature

Kingscote Airport (7 km)

  • Lowest 26 October, 2026

    3.5 °C

  • Average October

    14.6 °C

  • Highest 22 October, 2026

    28.4 °C

Climate (2021–2026)

Kingscote Airport (7 km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.2 °C
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